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sensors Mode-S transponder

A38641

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N326SY · operated by SKYWEST AIRLINES INC

Hex
A38641
Octal
50703101
Decimal
10,716,737
Country
US
Tail
N326SY
Type
E75L
No current signal · last broadcast 1h ago
Flights observed
618
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A38641.

Country allocation

The ICAO 24-bit address A38641 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
SKW3712 SkyWest Airlines 15 2026-06-07
SKW3915 SkyWest Airlines 14 2026-06-06
SKW3992 SkyWest Airlines 12 2026-06-12
SKW4127 SkyWest Airlines 8 2026-06-10
SKW3765 SkyWest Airlines 8 2026-07-04
SKW3681 - 8 2026-06-27
SKW3876 SkyWest Airlines 7 2026-05-14
SKW3820 - 7 2026-06-23
SKW3812 SkyWest Airlines 7 2026-06-06
SKW3707 SkyWest Airlines 7 2026-06-12
SKW3692 SkyWest Airlines 7 2026-06-10
SKW134F SkyWest Airlines 7 2026-06-06
SKW4253 - 6 2026-06-28
SKW4155 SkyWest Airlines 6 2026-04-26
SKW4134 - 6 2026-06-25
SKW4115 - 6 2026-07-11
SKW4098 - 6 2026-07-11
SKW4084 - 6 2026-07-03
SKW4041 SkyWest Airlines 6 2026-06-12
SKW4016 SkyWest Airlines 6 2026-05-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW3883 - Jul 14, 03:00 UTCJul 14, 03:50 UTC50m
2026-07-14 SKW4002 - Jul 14, 01:40 UTCJul 14, 02:05 UTC25m
2026-07-13 SKW3741 LAS → SAN Jul 13, 23:40 UTCJul 14, 00:30 UTC50m
2026-07-13 SKW4078 - Jul 13, 21:50 UTCJul 13, 22:35 UTC45m
2026-07-13 SKW4078 SNA → LAS Jul 13, 21:29 UTCJul 13, 22:34 UTC1h 5m
2026-07-13 SKW4078 LAS → SNA Jul 13, 19:10 UTCJul 13, 19:50 UTC40m
2026-07-13 SKW4179 - Jul 13, 03:10 UTCJul 13, 04:00 UTC50m
2026-07-13 SKW4179 - Jul 13, 01:10 UTCJul 13, 01:55 UTC45m
2026-07-12 SKW3751 - Jul 12, 23:10 UTCJul 13, 00:05 UTC55m
2026-07-12 SKW4001 LAX → SAN Jul 12, 21:40 UTCJul 12, 22:15 UTC35m
2026-07-12 SKW4108 - Jul 12, 18:30 UTCJul 12, 20:05 UTC1h 35m
2026-07-12 SKW4108 - Jul 12, 15:35 UTCJul 12, 17:20 UTC1h 45m
2026-07-12 SKW4057 - Jul 12, 13:25 UTCJul 12, 14:25 UTC1h 0m
2026-07-12 SKW4077 - Jul 12, 00:50 UTCJul 12, 01:55 UTC1h 5m
2026-07-11 SKW3842 SJC → LAX Jul 11, 22:10 UTCJul 11, 23:10 UTC1h 0m
2026-07-11 SKW3842 - Jul 11, 20:05 UTCJul 11, 20:55 UTC50m
2026-07-11 SKW3716 - Jul 11, 18:10 UTCJul 11, 18:35 UTC25m
2026-07-11 SKW3716 SAN → LAX Jul 11, 18:10 UTCJul 11, 18:35 UTC25m
2026-07-11 SKW3716 LAX → SAN Jul 11, 15:45 UTCJul 11, 16:15 UTC30m
2026-07-11 SKW4115 - Jul 11, 12:10 UTCJul 11, 13:45 UTC1h 35m
2026-07-11 SKW4098 - Jul 11, 03:50 UTCJul 11, 05:31 UTC1h 40m
2026-07-11 SKW4091 - Jul 11, 01:05 UTCJul 11, 02:35 UTC1h 30m
2026-07-10 SKW4091 - Jul 10, 22:05 UTCJul 10, 23:40 UTC1h 35m
2026-07-10 SKW3744 - Jul 10, 19:40 UTCJul 10, 20:45 UTC1h 5m
2026-07-10 SKW3680 SEA → TUS Jul 10, 15:55 UTCJul 10, 18:35 UTC2h 40m
2026-07-10 SKW118R - Jul 10, 13:00 UTCJul 10, 14:05 UTC1h 5m
2026-07-10 SKW4148 - Jul 10, 03:15 UTCJul 10, 04:45 UTC1h 30m
2026-07-10 SKW4148 LAX → BOI Jul 10, 03:13 UTCJul 10, 04:45 UTC1h 32m
2026-07-09 SKW3799 - Jul 9, 23:30 UTCJul 10, 01:45 UTC2h 15m
2026-07-09 SKW3799 GEG → LAX Jul 9, 23:35 UTCJul 10, 01:35 UTC2h 0m
2026-07-09 SKW3794 - Jul 9, 20:05 UTCJul 9, 22:10 UTC2h 5m
2026-07-09 SKW4119 - Jul 9, 18:05 UTCJul 9, 19:05 UTC1h 0m
2026-07-09 SKW4119 - Jul 9, 15:35 UTCJul 9, 16:30 UTC55m
2026-07-09 SKW4057 - Jul 9, 13:20 UTCJul 9, 14:35 UTC1h 15m
2026-07-09 SKW3827 - Jul 9, 05:55 UTCJul 9, 06:50 UTC55m
2026-07-09 SKW4077 - Jul 9, 03:45 UTCJul 9, 04:45 UTC1h 0m
2026-07-09 SKW4077 - Jul 9, 01:00 UTCJul 9, 02:00 UTC1h 0m
2026-07-08 SKW3902 - Jul 8, 22:45 UTCJul 8, 23:50 UTC1h 5m
2026-07-08 SKW3902 - Jul 8, 20:05 UTCJul 8, 21:00 UTC55m
2026-07-08 SKW4099 - Jul 8, 17:45 UTCJul 8, 18:50 UTC1h 5m
2026-07-08 SKW4099 - Jul 8, 15:25 UTCJul 8, 16:25 UTC1h 0m
2026-07-08 SKW3743 - Jul 8, 13:40 UTCJul 8, 14:05 UTC25m
2026-07-08 SKW3746 - Jul 8, 05:55 UTCJul 8, 06:25 UTC30m
2026-07-08 SKW3883 RHV → LAX Jul 8, 04:00 UTCJul 8, 05:00 UTC1h 0m
2026-07-08 SKW3883 - Jul 8, 01:55 UTCJul 8, 02:40 UTC45m
2026-07-07 SKW3701 - Jul 7, 23:10 UTCJul 8, 00:55 UTC1h 45m
2026-07-07 SKW3773 - Jul 7, 20:25 UTCJul 7, 22:00 UTC1h 35m
2026-07-07 SKW3696 - Jul 7, 16:50 UTCJul 7, 19:05 UTC2h 15m
2026-07-07 SKW3830 SEA → GEG Jul 7, 14:55 UTCJul 7, 15:40 UTC45m
2026-07-07 SKW3830 SEA → GEG Jul 7, 14:31 UTCJul 7, 15:31 UTC1h 0m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N326SY page for operator, model, and routing details .

Mode-S A38641 frequently asked

What is Mode-S code A38641?
A38641 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N326SY.
Where is Mode-S A38641 registered?
Mode-S code A38641 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A38641 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A38641, octal 50703101, decimal 10,716,737.
What flights does A38641 operate?
Mode-S A38641 has broadcast 20 distinct callsigns, including SKW3712, SKW3915, SKW3992, SKW4127, SKW3765.